(Nbx, Zr1–x)4AlC3 MAX Phase Solid Solutions: Processing, Mechanical Properties, and Density Functional Theory Calculations

2016 ◽  
Vol 55 (11) ◽  
pp. 5445-5452 ◽  
Author(s):  
Thomas Lapauw ◽  
Darius Tytko ◽  
Kim Vanmeensel ◽  
Shuigen Huang ◽  
Pyuck-Pa Choi ◽  
...  
Nanoscale ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 145-157 ◽  
Author(s):  
Karolina Z. Milowska ◽  
Marek Burda ◽  
Lidia Wolanicka ◽  
Paul D. Bristowe ◽  
Krzysztof K. K. Koziol

Density functional theory calculations supported by sonication experiments show that nitrogen doping of CNTs can effectively improve adhesion between them and the Cu matrix, and hence the mechanical properties and most importantly the electrical performance of the composite.


2020 ◽  
Vol 22 (13) ◽  
pp. 7039-7047 ◽  
Author(s):  
Jianhui Chen ◽  
Shuchang Cai ◽  
Rui Xiong ◽  
Baisheng Sa ◽  
Cuilian Wen ◽  
...  

The mechanical properties of group III–VI monolayers and sub-10 nm scale device performance of corresponding MOSFETs have been investigated by using density functional theory calculations as well as ab initio quantum transport simulations.


2009 ◽  
Vol 24 (10) ◽  
pp. 3165-3173 ◽  
Author(s):  
Yongli Liu ◽  
Hong Li ◽  
Shaoqing Wang ◽  
Hengqiang Ye

Nb can improve the oxidation resistance of TiAl; however, the reported concomitant effects on the mechanical properties are controversial. Therefore, the effect of different Nb additions (0∼20.83 at.% Nb) on the lattice distortion as well as dislocation nucleation and mobility of TiAl were examined by density-functional theory calculations to solve the puzzle. The calculation of the formation energy and c/a ratio showed that Nb slightly decreases the phase stability and enhances the anisotropy. The variation of shearing energy barrier demonstrates an interesting staged strengthening effect of Nb on TiAl. Further analyses of the charge density difference and the partial density of states reveal that the physical origination is the electronic anisotropy, which is correlated with the Nb content and distribution.


2019 ◽  
Author(s):  
Sergey Eremeev ◽  
A. R. Shugurov

<div>A comprehensive study of the evolution of electronic structure and chemical bonding in disordered Ti1-xAlxN and Ti1-x-y AlxTayN systems was performed by means of ab initio density functional theory calculations using crystal orbital Hamilton population technique.</div><br>


2019 ◽  
Author(s):  
Sergey Eremeev ◽  
A. R. Shugurov

<div>A comprehensive study of the evolution of electronic structure and chemical bonding in disordered Ti1-xAlxN and Ti1-x-y AlxTayN systems was performed by means of ab initio density functional theory calculations using crystal orbital Hamilton population technique.</div><br>


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